Improvement in drag-sawing machines



H. HUGHES. Y Drag-Sawing Machine.

' No. 212,702. Patented Feb. 25,1879.

WITNESSES: iNVENTOR:

;6 M' /M BY ORNEYS,

UNITED STATES PATENT Futon.v

HARVEY HUGHES, OF WHEAT RIDGE, OHIO.

IMPROVEMENT IN DRAG-SAWING MACHINES.

Specification forming part of Letters Patent No. 212,702, dated February25, 1879; application filed December 20, 1878.

To all whom it may concern.-

Be it known that I, HARVEY HUGHES, of Wheat Ridge, in the county ofAdams and State of Ohio, have invented an Improvement in Drag-SawingMachines, of which the following is a specification:

Figure l is a side elevation. View.

Simi'ar letters of reference indicate corresponding parts.

The object of this invention is to operate a cross-cut saw through theagency of a toggle joint and springs, and to so adjust them withreference to the saw as to best secure the object intended.

The frame-work is composed of three pieces or legs, A, B, and O, forminga tripod, of which A and B are the longer legs and O the shorter one ofcross-piece D, fastened at a and b to legs A and B, and of uprightstandard E, with foot secured to cross-pieceD at c, and firmly held inposition as it passes up through a cut in leg 0. by pin or bolt (1. ArmF of Fig. 2 is a plan the toggle-jointis pivoted at f to standard E, andarm G is pivoted at g to one end of lever H, which passes through anarrow slot, h, in leg G, and has for its fulcrum the pin t".

Motion is imparted to the to ggle-j oint through the action of the leverI, which is pivoted at It, and its pendent and swinging arm L; and inleg 0 is a broad slot, Z, which permits the unobstructed downwardmovement of the toggle-joint.

To the lower end of lever H the saw P is pivoted at 0, and it extendsand is movable through slot 8, made at the junction of the three legs ofthe tripod. The pin it supports the saw-blade in its horizontalposition.

It is obvious that a proper application of power to the lever I willgive a rapid sawin g motion to the saw P, and that economy of labor aswell as a most efficient way of applying power to the saw will besecured by this mechanism. The springs V WV, of elastic wood or metal,serve, through the medium of cord X,

which is secured to the lever H, as shown, to greatly assist in urgingforward and retracting the saw when it is in operation.

The pins Y serve to hold the apparatus in position upon or against anyobject when the saw is at work. i

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent- The combination. with a saw arranged in the slot 8 ofthe tripod-frame, of the lever I, pivoted to standard E, the arm L, thetoggle F G, and the lever H, as and for the purpose specified.

HARVEY HUGHES.

Witnesses R. S. BLAOKE, H. H. BROWN.

